Get all the struts and ties to stiffen up the chassis. If you want a smooth ride, then Tein is great because of adjustability. The Type R rear sway is a good start, you might also want to look into the Type S front sway 23mm, 2mm smaller than our stock. The Spoon progressive springs are good but only lower the CTR about 2cm. The CTR itself is already 2cm lower than our car so 4cm lower for the Si. If you get springs then look into getting shocks because eventually the stiffer and lower aftermarket spring will wear away at the stock shocks.
Bookmarks